Prepare release 4.16.0rc1

[AlexWaygood]

No description provided.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.26%. Comparing base (890be90) to head (3f44561).

@@           Coverage Diff           @@
##             main     #766   +/-   ##
=======================================
  Coverage   97.26%   97.26%           
=======================================
  Files           3        3           
  Lines        7862     7862           
=======================================
  Hits         7647     7647           
  Misses        215      215           

Flag	Coverage Δ
3.10	88.85% <ø> (ø)
3.10.4	88.85% <ø> (ø)
3.11	88.03% <ø> (ø)
3.11.0	87.28% <ø> (ø)
3.12	87.97% <ø> (ø)
3.12.0	87.96% <ø> (ø)
3.13	83.39% <ø> (ø)
3.13.0	84.11% <ø> (ø)
3.14	79.54% <ø> (ø)
3.9	89.54% <ø> (ø)
3.9.12	89.54% <ø> (ø)
pypy3.10	88.69% <ø> (ø)
pypy3.11	87.89% <ø> (ø)
pypy3.9	89.37% <ø> (ø)

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